All dogs are going to -- keep in mind that all dogs are of different temperaments and different sizes and shapes. As I show you the hand strokes that you will use, you can modify those hand strokes and the pressure that you use to match your dog size and sensitivity level. This has been the introduction to how to massage your dog, and in the next sequence we will go over the basics of canine massage.
Some studies have shown that your deep sleep should at least be 20% of your overall sleep. It means that since most adults need 8-9 hours of sleep, they will need about 1.6-1.8 hours of deep sleep to feel fully functional next day.
As the night progresses, individuals spend increasingly more time in REM sleep and correspondingly less time in deep sleep. How long is a sleep cycle? The first sleep cycle takes about 90 minutes. After that, they average between 100 to 120 minutes. Typically, an individual will go through four to five sleep cycles a night. What Is Deep Sleep? Stages 3 and 4 are referred to as deep sleep, slow wave sleep, or delta sleep.